In the garden (paradise) there is a canal in which JIbrail immerses his wings

إِنَّ فِي الْجَنَّةِ نَهَراً يَغْتَمِسُ فِيهِ جَبْرَئِيلُ ع كُلَّ غَدَاةٍ ثُمَّ يَخْرُجُ مِنْهُ فَيَنْتَفِضُ فَيَخْلُقُ اللَّهُ عَزَّ وَ جَلَّ مِنْ كُلِّ قَطْرَةٍ تَقَطَّرُ مِنْهُ مَلَكاً.

Abu Ja’far (asws) having said that: ‘In the Paradise is a river in which Jibraeel (as) dives into, every morning. Then he (as) comes out of it, and shakes. So Allah (azwj) Creates an Angel from every drop that falls of him (as)’.